matematika
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![](https://id-static.z-dn.net/files/d96/03a91a5f6ba096932f7a7330f51d2d94.jpg)
Jawab:
ini dibulatkan ke 30 menit
lubang A=135ml/3menit × 10 = 1350ml/ 30menit
lubang B=3600 ml/90 menit= 3600ml÷3=1200ml / 30menit
lubang C=1500 ml/ 30 menit
jadi lubang A,B,C sama sama kita bagi 6.
jadi jawabannya lubang C.